125 SX 2009

The new 125 SX sets the standards in this field, and not just with its optimized chassis. It is ultra-light, super-agile and also convinces with a level of power which most four-strokes will find hard to beat.

CHASSIS

FRAME
Sturdy, oversized, oval lateral tubes make the chromemoly frame one of the most stable and lightweight designs on the market. tough lateral plastic frame guards (in the acesories kit with all SX) now efficiently protect the high-quality powder coating.

FORKS
The fully adjustable 48 mm upside-down forks with „closed cartridge" technology and new star -shaped adjusting knobs at the top, now have a new hydrostop and a completely new seting. That gives even better damping and more sensitive responsiveness. The elegant CNC-milled triple clamps with adjustable offset permit optimum adaptation to riding style and track.

SWINGARM
The superlight cast swingarm was adapted to the bending loads occurring during riding using the latest simulation software. That ensures optimum flexibility, enormous traction and maximum comfort.

SHOCK ABSORBER
An optimised seting of the fully adjustable PDS shock absorber from WP offers more progression and even more reserves under extreme loads.

COOLING
The integrated cooling system leads from the cylinder head through the frame triangle and via a T-piece straight to the coolers.

WHEELS
The latest generation of Excel wheel rims has been furt her weight-reduced and is already first choice when it comes to wheels. CNC-machined hubs with extra-light, self-cleaning, wave shaped brake discs guarantee minimum unsprung masses.

BRAKES
A new floatin g front two-piston brake caliper with new brake master cylinder (reduced piston diameter) improves the application of the front brake and reduces the required hand force. At the rear, a single-piston brake calliper grips the ultra-light, waveshaped brake disc.

HANDLEBAR
The high-quality Renthal handlebar of tapered aluminium with an ergonomically optimised shape can be adjusted to four positions to exactly suit the rider.

SEAT
The seat of the new SX series now has an optimised foam core for improved comfort and even longer service life. In addition, the weight has been reduced by 150 grams.

CHAIN
Regina is the Latin word for „queen" and has been a trademark of quality for many years. The latest SX models have an even stronger chain to better cope with the high performance of the KTM engines.

AIR BOX
The airbox with ample volume provides plenty of power and on the 450 SX-F even has room for the battery. Filter changing without tools as always. The outer contour ensures optimum knee contact.

PLASTICS
All plastics have been designed for optimum ergonomics and maximum freedom of movement. Front fender, starting number plate and chainguard are manufactured in two-component technology. Two different plastic hardnesses in one part ensure particularly high rigidity exactly where it is needed.

TANK
The tank layout ensures optimum ergonomics and the best knee contact with the bike. The ducts under the spoilers form part of the KTM Airflow system with which fresh air is guided to the airbox via openings in the spoilers.The fuel tank cap with bayonet fitting has an additional twist lock, to prevent unintentional opening, that can be easily unlocked by pressing the orange inner segment.

SPOILERS/GRAPHICS
The new spoilers reduce the width at the front end by more than 10 mm to enhance ergonomics. Manufactured with the latest IN-MOULD technology, a plastic layer over the stickers protects the new col graphics and thus makes them far more durable. The openings at the front of the spoilers serve as air outlets for the coolers and fresh air is drawn into the airbox through the openings at the rear. In addition, all SX bikes will be equipped with additional starting number plates from 2009.

ENGINE

CYLINDER
New cylinders with optimised kinematics of the exhaust control ensure wider opening of the exhaust valve. Result: even more bottom end power.

PISTON
New pistons in proven design with optimised material (less silicon). That gives higher fatigue strength and improved running-in behaviour.

CARBURETTOR
A new Keihin PWK carburetor now with 38 mm instead of 39 mm, together with a new intake flange, ensures significantly improved responsiveness and a stronger power development.

CLUTCH
The newly developed Magura master cylinder guarantees an even more precise pressure point and optimum application of the hydraulic clutch. Also new is the FLEX clutch lever that, in the event of a crash, can turn almost 90° to the front and is thus less susceptible to breakage.

ENGINE COVERS
New engine covers with new logo and optimised coating not only look cool, they also offer improved protection against rough offroad boots.